* @return The normalized URL or {@code null} if the input was {@code null}.
     */
    String normalize(String url);

     * @param request The model building request that holds further settings, must not be {@code null}.
     */
    void normalize(Model model, ModelBuildingRequest request);

    }

    private UrlNormalizer normalizer;

    UrlNormalizingPostProcessor(UrlNormalizer normalizer) {
        this.normalizer = normalizer;
    }

    @Override
    public Object execute(String expression, Object value) {
        if (value != null && URL_EXPRESSIONS.contains(expression)) {
            return normalizer.normalize(value.toString());
        }

        return null;
    }

 */
class DefaultUrlNormalizerTest {

    private UrlNormalizer normalizer = new DefaultUrlNormalizer();

    private String normalize(String url) {
        return normalizer.normalize(url);
    }

    @Test
    void testNullSafe() {
        assertNull(normalize(null));
    }

    @Test
    void testTrailingSlash() {
        assertEquals("", normalize(""));

    }

    @Override
    public void normalize(Model model, ModelBuildingRequest request) {
        if (model == null) {
            return;
        }

        model.setUrl(normalize(model.getUrl()));

        Scm scm = model.getScm();
        if (scm != null) {
            scm.setUrl(normalize(scm.getUrl()));
            scm.setConnection(normalize(scm.getConnection()));

func (sys *IAMSys) createCleanEntitiesQuery(q madmin.PolicyEntitiesQuery, ldap bool) cleanEntitiesQuery {
	cleanQ := cleanEntitiesQuery{
		Users:    make(map[string]set.StringSet),
		Groups:   set.CreateStringSet(q.Groups...),
		Policies: set.CreateStringSet(q.Policy...),
	}

	if ldap {
		// Validate and normalize users, then fetch and normalize their groups

import javax.inject.Named;
import javax.inject.Singleton;

/**
 * Normalizes a URL.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultUrlNormalizer implements UrlNormalizer {

    @Override
    public String normalize(String url) {
        String result = url;

        if (result != null) {

        Map<String, Dependency> normalized = new LinkedHashMap<>(dependencies.size() * 2);

        for (Dependency dependency : dependencies) {
            normalized.put(dependency.getManagementKey(), dependency);
        }

        if (dependencies.size() != normalized.size()) {
            builder.dependencies(normalized.values());
        }

        return builder.build();
    }

            path = path.replace('\\', File.separatorChar).replace('/', File.separatorChar);

            File file = new File(path);
            if (file.isAbsolute()) {
                // path was already absolute, just normalize file separator and we're done
                result = file.getPath();
            } else if (file.getPath().startsWith(File.separator)) {

            return null;
        }

        String s = stripBasedirToken(path);

        File file = new File(s);
        if (file.isAbsolute()) {
            // path was already absolute, just normalize file separator and we're done
            s = file.getPath();
        } else if (file.getPath().startsWith(File.separator)) {
            // drive-relative Windows path, don't align with project directory but with drive root